Electronic device having detachable battery pack

ABSTRACT

An electronic device may include a battery pack and a battery pack mount portion. The battery pack may be mounted or secured within the battery pack mount portion in such a way that the battery pack does not influence or apply pressure to neighboring structures. For examples, the battery pack may include at least one eat protrusion that is received within at least one recess formed in the battery pack mount portion.

CLAIM OF PRIORITY

This application claims the benefit of priority under 35 U.S.C. §119(a)of a Korean patent application filed in the Korean Intellectual PropertyOffice on Mar. 11, 2013 and assigned Serial No. 10-2013-0025394, theentire disclosure of which is hereby incorporated by reference.

BACKGROUND

1. Technical Field

The present disclosure relates to an electronic device having adetachable battery pack.

2. Description of the Related Art

As multimedia technology continues to develop, the functionality ofelectronic devices is increasing. Generally, there has been aconvergence of technology such that a single device may performfunctions that were previously performed by several different standaloneelectronic devices.

Mobile terminals are electronic devices that are commonly known as“smartphones”. Mobile terminals have entered the mainstream of dailylife. These mobile terminals often include a large-sized touch typedisplay module and a mega-pixel camera module. The inclusion of suchcomponents enable a smartphone to not only provide a communicationfunction, but also to provide other functions such as the ability tophotograph pictures and record motion pictures. Mobile terminals mayalso reproduce multimedia contents such as music, moving pictures, andthe like. They may also provide access a network to allow a user tobrowse the web or internet. As the performance of mobile terminals,e.g., processor performance, continues to improve, the functionality ofsmartphones is increasing such that the primary function of thesedevices is no longer just communication.

The above-described electronic devices require a power supply means,such as a battery pack, which is capable of providing power for all ofthe above-described functions. Often, a battery pack is detachablyinstalled within the electronic device, and may be separated from theelectronic device and charged using a separate adapter for charging.

Generally, the increase in the functionality of electronic devices hascaused a corresponding increase in the power requirements for suchdevices to operate. These power requirements have led to battery packshaving a greater capacity to store power. As the capacity of power packsincreases, the physical size of the battery pack has also increased. Inthe case of a mobile terminal, the battery pack typically occupies sixty(60) percent or more of the space within the mobile terminal. As thepower requirements of electronic devices continue to increase, thebattery packs that power these devices are likely to become physicallylarger such that the space within the electronic devices that isoccupied by the battery packs will correspondingly become greater.

When a battery pack having a large volume is mounted inside anelectronic device, it is desirable that its position within theelectronic device is maintained without influencing or being influenced(e.g., applying excessive forces) by neighboring structures within theelectronic device.

SUMMARY

An aspect of the present disclosure is to address at least theabove-mentioned problems and/or disadvantages and to provide at leastthe advantages described below. In an embodiment, an electronic devicemay include a battery pack having a relatively large volume and a highcapacity.

In another embodiment, an electronic device may include a battery packthat is configured such that it is not deformed (e.g., by externalforces acting upon the electronic device or between the battery pack andits neighboring components) after it is mounted in the electronicdevice.

In yet another embodiment, an electronic device may include a batterypack configured such that it is not deformed (e.g., by external forcesacting upon the electronic device or between the battery pack and itsneighboring components) after it is mounted without separate limitationin design or extension of a space.

In a still further embodiment, an electronic device may include abattery pack that it is easily detachable from the electronic device.

In yet a further embodiment, an electronic device may include a batterypack configured to prevent floating or movement of the mounted batterypack relative to other components of the electronic device and/or alsoto prevent destruction of the battery pack.

In another embodiment, an electronic device may include a case framehaving a battery pack mount portion and a battery pack mounted in thebattery pack mount portion. The battery pack may be used as a powersupply means. One or more seat protrusion may be formed to protrude toan outer direction from at least one end of the battery pack. A recessmay be formed in the battery pack mount portion. The seat protrusion maybe seated within the recess. The seat protrusion may be hooked at therecess in such a way that it is seated in the recess such that thebattery pack may not pressurize a backside of the battery pack mountportion.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other aspects, features and advantages of certainexemplary embodiments of the present invention will be more apparentfrom the following description taken in conjunction with theaccompanying drawings in which:

FIG. 1 is an exploded perspective view of an electronic device having abattery pack according an embodiment of the present disclosure;

FIG. 2 is a perspective view of a sheet plate is shown relative to anupper case frame of FIG. 1;

FIG. 3 is a cross-sectional view of the electronic device FIG. 1 shownwith the battery pack mounted therein;

FIG. 4 is a cutaway perspective view of FIG. 1;

FIG. 5 is a plan view of a portion of the electronic device of FIG. 1;

FIG. 6 is a cutaway perspective view of a portion of the electronicdevice of FIG. 1 shown with the battery pack of FIG. 1 mounted therein;

FIG. 7 is a perspective views illustrating the battery pack of FIG. 1;and

FIG. 8 is a cutaway perspective view of a battery pack according toanother embodiment of the present disclosure.

DETAILED DESCRIPTION

The following description with reference to the accompanying drawings isprovided to assist in a comprehensive understanding of exemplaryembodiments of the invention as defined by the claims and theirequivalents. It includes various specific details to assist in thatunderstanding but these are to be regarded as merely exemplary.Accordingly, those of ordinary skill in the art will recognize thatvarious changes and modifications of the embodiments described hereincan be made without departing from the scope and spirit of theinvention. Also, descriptions of well-known functions and constructionsare omitted for clarity and conciseness.

The terms and words used in the following description and claims are tobe broadly construed in light of the present specification and are notto be limited to any particular dictionary definition as they are merelyused by the inventor to enable a clear and consistent understanding ofthe invention. Accordingly, it should be apparent to those skilled inthe art that the following description of exemplary embodiments of thepresent invention are provided for illustration purpose only and not forthe purpose of limiting the invention as defined by the appended claimsand their equivalents. Throughout the accompanying drawings, likereference numerals will be understood to refer to like parts,components, and structures.

It is to be understood that although a mobile terminal having a displaymodule has been illustrated and explained in describing embodiments ofthe present invention, the presently described invention is not limitedto a mobile terminal but is applicable to electronic devices moregenerally. For example, the present invention is applicable to variouselectronic devices having a detachable battery pack such as a PersonalDigital Assistant (PDA), a laptop computer, a mobile phone, asmartphone, a netbook, a Mobile Internet Device (MID), an Ultra MobilePersonal Computer (UMPC), a tablet PC, a navigation, an MP3 player, etc.

In an embodiment, an electronic device may include a case frame having abattery pack mount portion and a battery pack mounted in the batterypack mount portion. The battery pack may be used as a power supplymeans. One or more seat protrusion may be formed to protrude to an outerdirection from at least one end of the battery pack. A recess may beformed in the battery pack mount portion. The seat protrusion may beseated within the recess. The seat protrusion may be hooked at therecess in such a way that it is seated in the recess such that thebattery pack may not pressurize a backside of the battery pack mountportion.

In a still further embodiment, a plurality of seat protrusions mayprotrude at predetermined intervals to an outer direction from one endof the battery pack.

In yet another embodiment, the seat protrusion may be formed to protrudein a rib shape from a side of the battery pack.

In yet another embodiment, the seat protrusion may be installed at alower end of the battery pack.

In a still further embodiment, the seat protrusion may be at least oneof support bodies formed of an insulating synthetic resin supporting abattery cell of the battery pack.

In a further embodiment, both a left and a right side of the batterypack mount portion may be formed in a bent shape entering in a directionof the battery pack mount portion toward a lower side thereof in orderto support both the left and right sides of the battery pack.

In yet another embodiment, a backside of the battery pack mount portionmay include at least one of a sheet plate, a plastic sheet, and aconductive tape mounted with a case frame such that it is separable.

In another embodiment, the battery pack may include a battery cell, afirst support body formed of an insulating synthetic resin that isinstalled to support the battery cell on one side of the battery cell,and a second support body formed of an insulating synthetic resin thatis installed in a direction facing the first support body.

In a further embodiment, the seat protrusion may be formed on the secondsupport body.

In another embodiment, concave recesses may be formed in both a left anda right side of the first support body, and protrusions configured tofit in the concave recesses may protrude on a corresponding position ofthe battery pack mount portion.

In a still further embodiment, the battery pack mount portion may have amount space that is positioned lower relative to a backside of theelectronic device.

In another embodiment, the battery pack may be mounted in the batterypack mount portion and an upper side of the battery pack may beconfigured such that it is not higher relative to a backside of theelectronic device.

In a still further embodiment, the seat protrusion may be configuredsuch that it does not protrude beyond the upper side of the battery packor the backside of the electronic device when the seat protrusion isseated in the recess.

FIG. 1 is a exploded perspective view illustrating an electronic device1 having a battery pack 20 according an embodiment of the presentdisclosure.

Referring to FIG. 1, the electronic device 1 may include a main body 10,a battery pack 20 that is detachably installed in the backside of themain body 10, and a cover 30 mounted in a portion of the backside of themain body 10, which is configured to protect the battery pack 20 andvarious components within the electronic device 1. In particular, thecover 30 protects the battery pack 20 by inhibiting or preventing itfrom being exposed to the outside or detached from the electronicdevice. An opening 33 may be formed through the cover 30 through which acomponent (for example, a camera module 103) that is installed in themain body 10 of the electronic device 1 may pass through and exposed tothe outside of the electronic device 1.

The main body 10 of the electronic device 1 may include an upper caseframe 11 and a lower case frame 12 that are coupled to each other, andmay receive various electronic components, which may perform variouselectronic function, therein. A large-screen display module (not shown)may be installed on the front side of the electronic device 1, and mayinclude a touch sensor for receiving a data input.

A cover mount portion 101 may be formed in the backside of theelectronic device 1, and various components may be exposed through thecover mount portion 101. The components that are exposed through thecover mount portion 101 may be detachably installed or operativelycoupled to the electronic device 1. These components may include thebattery pack 20 and other components such as a Subscriber IdentityModule (SIM) card mount portion 104 in which a SIM card is installed, amemory card mount portion 105 in which a small memory card is installed,etc. The electronic device 1 may include the camera module 103, whichmay be exposed to the outside of the electronic device 1 to allow forphotographing or shooting of an object.

Furthermore, the cover mount portion 101 may be configured such that theouter side of the cover mount portion 101 shares a side with the lowercase frame 12 of the main body 10 when the cover mount portion 101 iscoupled to the main body 10. The cover mount portion 101 may be formedto have a recess having a depth that is substantially the same thicknessas the cover 30. Therefore, when the cover 30 is mounted in the lowercase frame 12 of the electronic device 1, the cover 30 and the lowercase frame 12 may be in the same plane. A plurality of hookingprotrusions (not shown) may be formed at predetermined intervals alongthe edge of the cover 30. A plurality of hooking recesses (not shown)may be formed in the cover mount portion 101 of the main body 10 of theelectronic device 1 so that the cover 30 may be fixed in the cover mountportion 101 in such a way that the hooking protrusions are forcibly fitinto the hooking recesses.

A battery pack mount portion 102 may have a surface that is positionedalong a plane that is lower than that of a surface of the cover mountportion 102. The battery pack 20 may be mounted within a recess that isformed in the cover mount portion 101. A separate sheet plate 40 mayspace the backside of the battery pack mount portion 102 apart fromother components such as the display module. The sides of the batterypack mount portion 102 may support the sides of the battery pack 20.

The battery pack 20 may include a battery cell 21, a first support body22, and a second support body 23. The first support body 22 and thesecond support body 23 may support the battery cell 21 at opposing endsthereof. The first and second support bodies 22 and 23 may be formed ofan insulator, such as a synthetic resin.

The first support body 22 may include a plurality of terminals 24 thatare electrically connected to the battery cell 21 inside the batterypack 20 and exposed to the outside of the batter pack 20. The terminals24 may be electrically connected to a connector (not shown) installed inthe battery pack mount portion 102 of the main body 10. Concave recesses221 and 222 may be formed at opposing ends of the first support body 22and coupled to protrusions that are formed in the battery pack mountportion 102 of the main body 10 to guide mounting of the battery pack 20and to prevent detachment of the battery pack 20 from the battery packmount portion 102. The concave recesses 221 and 222 may also oralternatively be formed at opposing ends of the first support body 22.Furthermore, similar recesses (not shown) may also or alternatively beformed at corresponding positions of the battery pack mount portion 102of the main body 10, and coupled to corresponding protrusions (notshown) formed on the battery pack 20.

According to an embodiment of the present invention, a plurality of seatprotrusions 231, 232, 233 may protrude at predetermined intervals fromthe second support body 23. When the battery pack 20 is mounted in thebattery pack mount portion 102 of the main body 10, the seat protrusions231, 232, 233 may be seated in recesses 111, 112, 113 having a grooveshape at corresponding positions along a side of the battery pack mountportion 102. Consequently, when the battery pack 20 is mounted in thebattery pack mount portion 102, the protrusions 231, 232, 233 formed inthe battery pack mount portion 102 of the main body 10 fit in theconcave recesses 111, 112, 113 of the first support body 22. Also, sincethe plurality of seat protrusions 231, 232, 233 of the second supportbody 23 are hooked at the recesses 111, 112, 113 formed in thecorresponding positions of the battery pack mount portion 102 of themain body 10, the battery pack 20 does not influence (e.g., applypressure or force to) the sheet plate 40 disposed on the lower side ofthe battery pack mount portion 102.

The described battery pack mount structure has a different configurationfrom the conventional battery pack mount structure. In the conventionalart, only one side of the battery pack is supported by a battery packmount portion, and the other side (for example, a second injectiondirection) is supported by a sheet plate disposed on the lower side ofthe battery pack mount portion.

Therefore, in the conventional art, after the battery pack is mounted inthe battery pack mount portion of the main body, the battery pack willstrike the sheet plate due to an external pressure or external impulse,which may result in the sheet plate becoming warped and deformed.Consequently, a mount tolerance of the battery pack has to be greater,resulting in the battery pack floating or moving arbitrarily andincreasing the potential of a malfunction in electrical connection withthe main body occurs.

Furthermore, since both the left and right of the battery pack mountportion are conventionally formed to support both sides of the batterypack using an assembly structure of the case frame of the electronicdevice, the battery pack is designed to be tightly mounted in thebattery pack mount portion. The conventional configuration may result indeformation or destruction of the case frame of the electronic devicewhen the volume or size of the battery pack increases, for example, frombeing fully or overly charged, causing it to press against neighboringstructures or components.

In contrast, according to an embodiment of the present disclosure, theplurality of seat protrusions 231, 232, 233 are formed on the secondsupport body 23, which is on a side of the battery pack 20, and theprotrusions 231, 232, 233 are seated and hooked at the recesses 111,112, 113 formed in the corresponding positions of the battery pack mountportion 102. Therefore, the first and second support bodies 22 and 23,which are located at upper and lower ends of the battery pack 20, have aself-support structure that is independent of the sheet plate 40. Thisconfiguration reduces the likelihood that, the sheet plate 40 will bedeformed. Due to this support structure, both the left and rightinjected structures inside the battery pack mount portion 102 of thecase frame 11 of the electronic device 1 supporting both the left andright of the battery pack 20 may be designed to include a marginal spacethat may allow a volume increase in size of the battery pack 20 that mayresult from charging the battery pack 20.

FIG. 2 is a perspective view of the sheet plate 40 shown relative theupper case frame 11 of FIG. 1. FIG. 3 is a cross-sectional view of aportion of the electronic device 1 of FIG. 1 shown with the battery pack20 mounted therein.

Referring to FIGS. 2 and 3, an opening 114 of a predetermined size isformed in the upper case frame 11. The opening 114 may be utilized as aspace for mounting the battery pack 20 therein, and the sheet plate 40may be disposed at a depth within the opening 114 to block the opening114. The battery pack 20 may be mounted within the upper case frame 11,and may have a thickness that is substantially equal to the thickness ofthe upper case frame 11 minus the depth at which sheet plate 40 isdisposed within the upper case frame 11.

The upper case frame 11 may be formed from a magnesium casting, and may,for example, be formed using die-casting but is not limited thereto andmay be replaced by an injection material formed of a synthetic resin.The display module (not shown) of the electronic device 1 may be mountedon the upper side of the upper case frame 11.

Also, the sheet plate 40 may be formed of metal having a relatively finethickness and strength. The materials for the sheet plate may bealuminum, SUS, etc. The sheet plate may be realized using a compositematerial such as GFRP and CFRP, which although not metal have similarproperties to that of metal. Furthermore, the sheet plate 40 may besafely formed of inorganic materials such as glass or high polymermaterials such as PC, etc.

As shown in FIG. 3, a seat surface 115 having a predetermined width maybe formed in the opening 114 of the upper case frame 11 along the innerperiphery of the opening 114 such that it is lower than the surface ofthe upper case frame 11, thereby forming a step threshold 116 in theboundary portion between the seat surface 115 and the upper case frame11. Therefore, a predetermined portion of the edge of the sheet plate 40contacts the seat surface 115 formed in the opening 114 of the uppercase frame 11, and the sheet plate 40 is supported or guided by the stepthreshold 116 and seated upon and coupled to the seat surface 115. Atthis point, the sheet plate 40 may be fixed to the upper case frame 11,for example, with an adhesive means such as bonding, a double-sidedadhesive tape, etc. The step threshold 116 may be generated by amechanical structure such as various ribs, etc. that are formed in theneighborhood of the inner edge of the opening 114 besides the seatsurface.

Although sheet plate 40 is depicted in the appended figures as beingrectangular, the sheet plate 40 may have other configurations. Forexample, the sheet plate may be formed in various shapes depending onthe shape of the opening 114 of the upper case frame 11 to which thesheet plate is applied.

Referring to FIGS. 1 and 3, when the battery pack 20 is mounted in theelectronic device 1, the concave recesses 221 and 222 formed in thefirst support body 22 of the battery pack 20 couple with correspondingprotrusions (not shown) of the battery pack mount portion 102, and theplurality of seat protrusions 231, 232, 233 formed on the second supportbody 23 are supported in a structure of being hooked at the recesses111, 112, 113 of the battery pack mount portion 102 so that the sheetplate 40 is not influenced by the battery pack 20. In particular, evenwhen an external force F (FIG. 3) is applied to the central portion ofthe battery pack 20 after the battery pack 20 is mounted in the batterypack mount portion 102, the sheet plate 40 is not struck by the batterypack 20 and is not deformed by the external force F.

Since this structure allows the upper and lower ends, as well as theleft and right sides of the battery pack 20, to be completely supportedby the case frames 11 and 12 of the electronic device 1, the metal sheetplate 40 may be replaced by a lightweight plastic sheet or a conductivetape, which may contribute to reduction of the entire thickness of theelectronic device. Alternatively, the sheet plate 40 may be removedaltogether, exposing the backside of the display module, andcontributing to weight reduction and slimness of the electronic device1.

FIG. 4 is a cutaway perspective view of FIG. 1 in which the battery pack20 is mounted in the electronic device 1 according an embodiment of thepresent disclosure, FIG. 5 is a plan view partially illustrating a statewhere the battery pack 20 of FIG. 1 is mounted in the electronic deviceaccording to another embodiment of the present disclosure. FIG. 6 is aperspective view illustrating the battery pack 20 of FIG. 1 is mountedin the electronic device according a still further embodiment of thepresent invention.

Referring to FIGS. 4 to 6, with the concave recesses 221 and 222 of thefirst support body 22 of the battery pack 20 coupled to correspondingprotrusions (not shown) formed on the battery pack mount portion 102 ofthe main body 10 of the electronic device, the second support body 23 islowered down in the direction of the battery pack mount portion 102. Atthis point, the seat protrusions 231, 232, 233 of the second supportbody 23 are hooked in such a way that the seat protrusions 231, 232, 233are seated in the recesses 111, 112, 113 formed in the correspondingpositions of the battery pack mount portion 102 so that both the upperand lower ends of the battery pack 20 may be supported.

As shown in FIG. 6, both the left and right of the battery pack 20 maybe supported by the injection structure of the upper and lower caseframes 11 and 12 of the main body 10.

As shown in FIG. 5, the seat protrusions 231, 232, 233 of the batterypack 20 and the recesses 111, 112, 113 formed in the upper case frame 11of the battery pack mount portion 102 are designed such that an assemblyinterval (the space between each pair of opposing arrows of FIG. 5) is0.1 mm or less so that left and right movement of the battery pack 20 isminimized after the battery pack 20 is mounted in the battery pack mountportion 102.

Also, as shown in FIG. 6, the space (the arrow portion of FIG. 6)between a support portion of the upper case frame 11 and lower caseframes 12 for supporting the lateral sides of the battery pack 20 andthe battery pack 20 may be about 0.05 mm or more, destruction of thecase frame by a volume increase when the battery pack 20 is fullycharged may be prevented in advance.

FIGS. 7 and 8 are perspective views illustrating a battery packaccording an embodiment of the present disclosure.

Referring to FIG. 7, the battery pack 20 may include a battery cell 21,a first support body 22 and a second support body 23 installed at bothends of the battery cell. A pair of protrusions 223 and 224 which aredifferent from the concave recesses 221 and 222 of the battery pack 20of FIG. 1 may protrude from both ends of the first support body 22. Apair of concave recesses may be formed in the corresponding positions ofthe battery pack mount portion 102 of the electronic device 1 in whichthe battery pack 20 is mounted. Also, a plurality of seat protrusions231, 232, 233 may be formed having a predetermined shape on the secondsupport body 23 so that the seat protrusions 231, 232, 233 may be seatedin the recesses 111, 112, 113 in such a way that the seat protrusions231, 232, 233 are hooked at the recesses 111, 112, 113 that are formedin the battery pack mount portion 102 of the main body 10.

With reference to FIG. 8, a battery pack 50, which is substantiallysimilar to the battery pack 20 except in the ways explicitly statedherein, will now be described. The battery pack 50 includes a batterycell 51 and a seat rib 531 that extends in a widthwise direction alongsubstantially an entire side of a support body 53 that is installed onone side of the battery cell 51.

Although not shown in the accompanying figures, in addition to the seatprotrusions 231, 232, 233 or the seat rib 531 protruding from thesupport body on one side of the battery pack 20 and 50 respectively,protrusions having a hooking structure may be formed in various shapes.Such protrusions, which facilitate securing or mounting the battery packto battery pack mount portion 102 of the electronic device 1, may alsoprevent an external force from being transmitted to neighboringcomponents (for example, the sheet plate, the display module, etc.).

The electronic device according to an embodiment of the presentdisclosure may prevent destruction of structures that neighbor thebattery pack and of the battery pack itself by external force byallowing the battery pack to be easily detached, thereby preventing theforce from being transmitted between the battery pack and itsneighboring structures.

Although the invention has been shown and described with reference tocertain exemplary embodiments thereof, it will be understood by thoseskilled in the art that various changes in form and details may be madetherein without departing from the spirit and scope of the invention asdefined by the appended claims and their equivalents. Therefore, thescope of the present invention should not be limited to theabove-described embodiments but should be determined by not only theappended claims but also the equivalents thereof.

What is claimed is:
 1. An electronic device comprising: a battery pack;a battery pack mount portion in which the battery pack is mounted; oneor more seat protrusions protruding from one end of the battery pack toan outer direction; and a recess which is formed in the battery packmount portion and in which the one or more seat protrusions are seatedwhen the battery pack is mounted.
 2. The electronic device of claim 1,wherein a plurality of the one or more seat protrusions protrude at apredetermined interval to the outer direction from the one end of thebattery pack.
 3. The electronic device of claim 1, wherein the one ormore seat protrusions are formed to protrude in a rib shape from oneside of the battery pack.
 4. The electronic device of claim 1, whereinthe one or more seat protrusions are installed at a lower end of thebattery pack.
 5. The electronic device of claim 1, wherein the batterypack includes a battery cell, the one or more seat protrusions areformed on a support body that is formed of an insulating syntheticresin, and wherein the support body supports the battery cell.
 6. Theelectronic device of claim 1, wherein both a left and a right side ofthe battery pack mount portion is formed in a bent shape entering in adirection of the battery pack mount portion toward a lower side in orderto support both a left and a right of the battery pack.
 7. Theelectronic device of claim 1, wherein a backside of the battery packmount portion includes at least one of a sheet plate, a plastic sheet,and a conductive tape mounted with a case frame such that it isseparable.
 8. The electronic device of claim 1, wherein the battery packcomprises: a battery cell; a first support body formed of an insulatingsynthetic resin, the first support body supporting the battery cell onone side of the battery cell; and a second support body formed of aninsulating synthetic resin, the second support body facing the firstsupport body.
 9. The electronic device of claim 8, wherein at least oneof the one or more seat protrusions is formed on the second supportbody.
 10. The electronic device of claim 9, wherein concave recesses areformed on both a left side and a right side of the first support body,and protrusions configured to fit in the concave recesses protrude oncorresponding positions of the battery pack mount portion.
 11. Theelectronic device of claim 1, wherein the electronic device has abackside, and wherein the battery pack mount portion has a mount spaceformed to be lower than the backside of the electronic device.
 12. Theelectronic device of claim 11, wherein, when the battery pack is mountedin the battery pack mount portion, an upper side of the battery pack isconfigured such that it is not higher than the backside of theelectronic device.
 13. The electronic device of claim 12, wherein theseat protrusion is configured such that it does not protrude beyond theupper side of the battery pack or the backside of the electronic devicewhen the seat protrusion is seated in the recess.
 14. The electronicdevice of claim 1, wherein the electronic device includes a backside,and further comprising a detachable cover, the detachable cover beingcoupled to the battery pack mount portion and forming at least a portionof the backside of the electronic device.
 15. The electronic device ofclaim 1, wherein the electronic device is a mobile terminal.
 16. Theelectronic device of claim 1, wherein the battery pack mount portionincludes a backside, and wherein when the battery pack is mounted in thebattery pack mount portion, the seat protrusion is hooked at the recessin such a way that the seat protrusion is seated in the recess, andwherein the battery pack does not apply pressure to the backside of thebattery pack mount portion.
 17. An electronic device comprising: a caseframe; a battery pack mount portion formed in the case frame, thebattery pack mount portion including a backside; a battery pack mountedin the battery pack mount portion; at least one seat protrusion formedto protrude from one end of the battery pack to an outer direction; anda recess formed in the battery pack mount portion, the recess beingconfigured to receive the seat protrusion therein, wherein when thebattery pack is mounted in the battery pack mount portion, the seatprotrusion is hooked at the recess in such a way that the seatprotrusion is seated in the recess and inhibiting the battery pack fromapplying pressure to the backside of the battery pack mount portion.